// ConsoleTools
// Copyright (C) 2017-2024 Dust in the Wind
// 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

using System;
using System.Reflection;
using DustInTheWind.ConsoleTools.Controls;

namespace DustInTheWind.ConsoleTools.Demo.NetCore.PauseDemo;

internal class ApplicationHeader
{
    private TextBlock titleBlock;
    private HorizontalLine horizontalLine;

    public string Title { get; set; }

    public ApplicationHeader()
    {
        InitializeControls();
    }

    private void InitializeControls()
    {
        titleBlock = new TextBlock
        {
            ForegroundColor = CustomConsole.EmphasizedColor
        };

        horizontalLine = new HorizontalLine
        {
            Character = '=',
            ForegroundColor = CustomConsole.EmphasizedColor,
            Margin = "0 0 0 1"
        };
    }

    private static Version GetAssemblyVersion()
    {
        Assembly assembly = Assembly.GetEntryAssembly();
        AssemblyName assemblyName = assembly.GetName();
        return assemblyName.Version;
    }

    private static string GetAssemblyTitle()
    {
        Assembly assembly = Assembly.GetEntryAssembly();
        AssemblyTitleAttribute assemblyTitleAttribute = assembly.GetCustomAttribute<AssemblyTitleAttribute>();

        return assemblyTitleAttribute?.Title;
    }

    public void Display()
    {
        OnBeforeDisplay();

        titleBlock.Display();
        horizontalLine.Display();
    }

    private void OnBeforeDisplay()
    {
        string title = Title ?? GetAssemblyTitle();

        Version version = GetAssemblyVersion();
        string versionAsString = version.ToString(3);

        titleBlock.Text = $"{title} - ver {versionAsString}";
    }
}